import {
    Card,
    Breadcrumb,
    Form,
    Button,
    Radio,
    Input,
    Upload,
    Space,
    Select,
    message
} from 'antd'
import { PlusOutlined } from '@ant-design/icons'
import { Link, useSearchParams } from 'react-router-dom'
import './index.scss'

import ReactQuill from 'react-quill'
import 'react-quill/dist/quill.snow.css'
import { useEffect, useState } from 'react'
import { createArticleAPI, getArticleDetailAPI, editArticleAPI } from '@/apis/article'
import { useChannels } from '@/hooks/useChannels'

const { Option } = Select

const Publish = () => {
    // 获取频道列表
    const { channelList } = useChannels()

    // 提交表单
    const onFinish = async values => {
        const { title, content, channel_id, type } = values
        // 校验封面类型
        if (imageType > 0 && imageList.length !== imageType) {
            message.warning('请上传' + imageType + '张图片')
            return
        }

        // 处理表单数据
        const reqData = {
            title,
            content,
            cover: {
                type,
                // 编辑的情况下要做另外处理，这里只是新增的情况
                images: imageList.map(item => {
                    if (item.response) {
                        return item.response.data.url
                    } else {
                        return item.url
                    }
                })
            },
            channel_id
        }

        // 提交接口
        let res = {}
        if (articleId) {
            res = await editArticleAPI({...reqData, id: articleId})
        } else {
            res = await createArticleAPI(reqData)
        }
        if (res.message === 'OK') {
            message.success(articleId ? '编辑文章成功' : '创建文章成功')
        }
    }

    // 上传回调
    const [imageList, setImageList] = useState([])
    const onChange = ({ fileList }) => {
        setImageList(fileList)
    }

    // 切换图片封面类型
    const [imageType, setImageType] = useState(0)
    const onTypeChange = e => {
        console.log(e.target.value)
        setImageType(e.target.value)
        setImageList([]);
    }

    // 回填数据
    const [searchParams] = useSearchParams()
    const articleId = searchParams.get('id')
    // 表单实例
    const [form] = Form.useForm()
    useEffect(() => {
        // 通过id获取数据
        async function getArticleDetail() {
            const res = await getArticleDetailAPI(articleId)
            const _data = res.data
            const { cover } = _data
            form.setFieldsValue({
                ..._data,
                type: cover.type
            })
            // 回填图片列表
            setImageType(cover.type)
            setImageList(cover.images.map(url => {
                return { url }
            }))
        }
        // 调取实例方法，完成回填
        articleId && getArticleDetail()
    }, [articleId, form])

    return (
        <div className="publish">
            <Card
                title={
                    <Breadcrumb items={[
                        { title: <Link to={'/'}>首页</Link> },
                        { title: articleId ? '编辑文章' : '发布文章' },
                    ]}
                    />
                }
            >
                <Form
                    labelCol={{ span: 4 }}
                    wrapperCol={{ span: 16 }}
                    initialValues={{ type: imageType }}
                    onFinish={onFinish}
                    form={form}
                >
                    <Form.Item
                        label="标题"
                        name="title"
                        rules={[{ required: true, message: '请输入文章标题' }]}
                    >
                        <Input placeholder="请输入文章标题" style={{ width: 400 }} />
                    </Form.Item>
                    <Form.Item
                        label="频道"
                        name="channel_id"
                        rules={[{ required: true, message: '请选择文章频道' }]}
                    >
                        <Select placeholder="请选择文章频道" style={{ width: 400 }}>
                            {channelList.map(item => <Option key={item.id} value={item.id}>{item.name}</Option>)}
                            {/* <Option value={0}>推荐</Option> */}
                        </Select>
                    </Form.Item>
                    <Form.Item label="封面">
                        <Form.Item name="type">
                            <Radio.Group onChange={onTypeChange}>
                                <Radio value={1}>单图</Radio>
                                <Radio value={3}>三图</Radio>
                                <Radio value={0}>无图</Radio>
                            </Radio.Group>
                        </Form.Item>
                        {imageType > 0 && <Upload
                            listType="picture-card"
                            showUploadList
                            action={'http://geek.itheima.net/v1_0/upload'}
                            name="image"
                            onChange={onChange}
                            maxCount={imageType}
                            fileList={imageList}
                        >
                            <div style={{ marginTop: 8 }}>
                                <PlusOutlined />
                            </div>
                        </Upload>}
                    </Form.Item>
                    <Form.Item
                        label="内容"
                        name="content"
                        rules={[{ required: true, message: '请输入文章内容' }]}
                    >
                        {/* 富文本编辑器 */}
                        <ReactQuill
                            className="publish-quill"
                            theme="snow"
                            placeholder="请输入文章内容" />
                    </Form.Item>

                    <Form.Item wrapperCol={{ offset: 4 }}>
                        <Space>
                            <Button size="large" type="primary" htmlType="submit">
                                {articleId ? '更新文章' : '发布文章'}
                            </Button>
                        </Space>
                    </Form.Item>
                </Form>
            </Card>
        </div >
    )
}

export default Publish